How you would design a study to measure the proportion of children living in a country...
How you would design a study to measure the proportion of children living in a country with a history of a certain infection.
a) study design used
b) study population and how you will sample them
c) laboratory assays used
Homework Answers
In the given question to find out children with a history of a certain infection.
Case control study is best for any retrospective study.
a) Study design used is case control study
b) study population is population which is chosen for study. There are two things cases and control.
Selection of cases All people in the source population who develop the disease of interest.
Clear definition of outcome studied.
Prevalent and incident cases . prevalent cases may be related more to survival with disease than to development of disease.
Source of cases are hospital and clinic because it is easier to find
Selection of control
Represent the distribution of exposure in the source population of cases .
Selected independently of their exposure status.
C) laboratory assay is used according to the disease which is studied for example ElISA for HIV infection
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